Anyone out there used both of these lenses? I am reading that the D model is slow to focus and does not have it's own motor, but which takes better pictures, that is all I care about. Also Ken Rockwell says this about the new G model.

"If you worry about straight lines or distortion, this is the worse 50mm lens ever made by Nikon since at least 1950, and I've tried them all, even for their rangefinder cameras. For low distortion, any of the f/1.8 lenses are nearly perfect. The 50mm f/2 and other f/1.4 lenses are all better than this 50/1.4G. The 50mm f/1.2 (only made for pros, so it's manual-focus only) is about the same, but still has a a hair less distortion than this 50/1.4 AF-S."

Which really gives me pause, I have a 24mm 2.8D which is stunning at close range. I am looking however to improve on low light under forest canopy conditions, so if the old 50mm d model is in the same class as the 24mm then all is fine. As for the new focus motor, sometimes less is more, and once focus is achieved I can shoot away anyway, as I do not shoot single shots typically. Not sure if the new G model is made of plastic vs metal like the older ones? Thanks

Anyone out there used both of these lenses? I am reading that the D model is slow to focus and does not have it's own motor, but which takes better pictures, that is all I care about. Also Ken Rockwell says this about the new G model.

"If you worry about straight lines or distortion, this is the worse 50mm lens ever made by Nikon since at least 1950, and I've tried them all, even for their rangefinder cameras. For low distortion, any of the f/1.8 lenses are nearly perfect. The 50mm f/2 and other f/1.4 lenses are all better than this 50/1.4G. The 50mm f/1.2 (only made for pros, so it's manual-focus only) is about the same, but still has a a hair less distortion than this 50/1.4 AF-S."

Which really gives me pause, I have a 24mm 2.8D which is stunning at close range. I am looking however to improve on low light under forest canopy conditions, so if the old 50mm d model is in the same class as the 24mm then all is fine. As for the new focus motor, sometimes less is more, and once focus is achieved I can shoot away anyway, as I do not shoot single shots typically. Not sure if the new G model is made of plastic vs metal like the older ones? Thanks

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I have read that about the 1.8 as well, but again after dawn or at dusk under tree cover, or even during daylight in thick areas, I will likely be at 1.4 so as to keep the speed up and reduce camera shake. Thanks

Well your 24mm f/2.8 on FF has hyperfocal distance of around 22 ft. So you can take decent landscape shots wide open with most all in focus (not sure what your subject matter is "under forrest canopy conditions". The 50mm f/1.4 has a hyperfocal distance of about 193 ft, of course most often you are looking for the small DOF with that lens wide open.

The 50/1.8G is sharper than the 50/1.4G
The 50/1.4 G and 1.8G use the same plastic body just the 1.4 uses more glass
The Gs are larger than the smaller Ds (Isn't the 1.8D a plastic body too? I'd have to check)

The G models have Focus Override which can come in handy at times.
The D you have to flip the switch to go into MF mode.

The 50/1.8D focuses as fast as the 50/1.8G in my limited tests. If there's a difference it's very minimal. Tested on a d7000 .. higher bodies may have faster motors.

I've had the 1.8D, 1.8G, 1.4G all at the same time, what fun.

I also had the 24/2.8D which had more distortion than my 24-85/2.8-4 AF-D at 24/2.8 so I sold the 24/2.8D

I currently own the 50/1.8D and 50/1.4G. The 1.8D is so cheap there's no reason not to have it with a 1.4.

I selected the 1.4G for the focus override while doing artistic portrait type shots where flipping the switch on a 1.4D actually would be a hassle (was a hassle on my 1.8D).

I've never tested the 50/1.4G on my brick wall which is what I test for distortion. But I assume like any lens as you fall below 80mm you are going to get some types of distortion and need to compensate for it if you are watching close enough. With in-camera distortion control and Post Processing distortion, vertical and horizontal corrections things can be dealt with to a degree.

For me there were 2 reasons I picked the 1.4G
I wanted f/1.4 for artistic things
and the focus override

For AutoFocus, the G is compatible with more Nikon cameras which include the d3x00 and d5x00 models
The AF/AF-D, for AutoFocus, is only compatible with bodies with an in-body focus motor such as d90, d7x00, and all of the FullFrame digital models.